#include "filesystem.h"

FILESYSTEM *FILESYSTEM::instance()
{
    static FILESYSTEM filesystem;
    return &filesystem;
}

FILESYSTEM::FILESYSTEM(QObject *parent) : QObject(parent){}

void FILESYSTEM::setDirectory(QString Directory)
{
   if (Directory!=m_Directory) {
       m_Directory = Directory;
       emit directoryChanged();
   }
}

QString FILESYSTEM::Directory() const
{
    return m_Directory;
}

QString FILESYSTEM::homePath() const
{
    QDir dir(m_Directory);
    QString homeDir=dir.homePath();
    //qDebug(homeDir);
    return homeDir;
}

QString FILESYSTEM::cameraPath() const
{
QAndroidJniObject object = QAndroidJniObject::getStaticObjectField<jstring>("android.os.Environment", "DIRECTORY_DCIM");
QAndroidJniObject dcim =QAndroidJniObject::callStaticObjectMethod("android.os.Environment","getExternalStoragePublicDirectory", "(Ljava/lang/String;)Ljava/io/File;", object.object<jobject>());
 return dcim.toString();
}


//bool FILESYSTEM::direxist(QString Directory) const
//{QDir dir(Directory);
// return dir.exists();
//}

void FILESYSTEM::makeDir(QString name)
{
    QDir dir(m_Directory);
    if (dir.mkdir(name)){
        emit success(name);
    }
    else {emit error(name,1);}
}

void FILESYSTEM::rmDir()
{
    QDir dir(m_Directory);
    //qDebug()<<m_Directory;
   if (dir.removeRecursively()){
    emit success(m_Directory);
    }
    else {emit error(m_Directory,1);}
}

void FILESYSTEM::rmFile(QString name)
{
    QDir dir(m_Directory);
    //qDebug()<<m_Directory;
    //qDebug(name);
    if(dir.remove(name)){
    emit success(name);
    }
    else {emit error(name,1);}
}
QFileInfoList FILESYSTEM::fileList()
{
    QDir dir(m_Directory);
    QStringList filters;
    filters << "*.png" <<"*.PNG" << "*.jpg" << "*.JPG" << "*.JPEG";
    dir.setNameFilters(filters);
    dir.setSorting(QDir::Time | QDir::Reversed);
    //QStringList m_Filelist=dir.entryInfoList();
    //qDebug() << "filelist " << m_Filelist;
    return dir.entryInfoList();
}

void FILESYSTEM::searchImage()
{
    QAndroidJniObject ACTION_PICK = QAndroidJniObject::getStaticObjectField("android/content/Intent", "ACTION_PICK", "Ljava/lang/String;");
    QAndroidJniObject EXTERNAL_CONTENT_URI = QAndroidJniObject::getStaticObjectField("android/provider/MediaStore$Images$Media", "EXTERNAL_CONTENT_URI", "Landroid/net/Uri;");

    QAndroidJniObject intent=QAndroidJniObject("android/content/Intent", "(Ljava/lang/String;Landroid/net/Uri;)V", ACTION_PICK.object<jstring>(), EXTERNAL_CONTENT_URI.object<jobject>());

    if (ACTION_PICK.isValid() && intent.isValid())
    {
        intent.callObjectMethod("setType", "(Ljava/lang/String;)Landroid/content/Intent;", QAndroidJniObject::fromString("image/*").object<jstring>());
        QtAndroid::startActivity(intent.object<jobject>(), 101,this);
        qDebug() << "OK";
    }
    else
    {
        qDebug() << "ERRO";
    }
}

void FILESYSTEM::handleActivityResult(int receiverRequestCode, int resultCode, const QAndroidJniObject &data)
{
    jint RESULT_OK = QAndroidJniObject::getStaticField<jint>("android/app/Activity", "RESULT_OK");
    if (receiverRequestCode == 101 && resultCode == RESULT_OK)
    {
        QAndroidJniObject uri = data.callObjectMethod("getData", "()Landroid/net/Uri;");
        QAndroidJniObject dadosAndroid = QAndroidJniObject::getStaticObjectField("android/provider/MediaStore$MediaColumns", "DATA", "Ljava/lang/String;");
        QAndroidJniEnvironment env;
        jobjectArray projecao = (jobjectArray)env->NewObjectArray(1, env->FindClass("java/lang/String"), NULL);
        jobject projacaoDadosAndroid = env->NewStringUTF(dadosAndroid.toString().toStdString().c_str());
        env->SetObjectArrayElement(projecao, 0, projacaoDadosAndroid);
        QAndroidJniObject contentResolver = QtAndroid::androidActivity().callObjectMethod("getContentResolver", "()Landroid/content/ContentResolver;");
        QAndroidJniObject cursor = contentResolver.callObjectMethod("query", "(Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", uri.object<jobject>(), projecao, NULL, NULL, NULL);
        jint columnIndex = cursor.callMethod<jint>("getColumnIndex", "(Ljava/lang/String;)I", dadosAndroid.object<jstring>());
        cursor.callMethod<jboolean>("moveToFirst", "()Z");
        QAndroidJniObject resultUri = cursor.callObjectMethod("getString", "(I)Ljava/lang/String;", columnIndex);
        QString imageSelect = "file://" + resultUri.toString();
        emit imageselected(imageSelect);
    }
    else
    {
        qDebug() << "Select error";
    }
}